During the operation of the bearing, it is greatly affected by the working environment. If the maintenance is not in place, it will directly affect the service life of the bearing. Let us first look at the impact of the cleanliness of the bearing on the use of the bearing.
1. Bearings with high cleanliness have low vibration rate value, especially in the high frequency spectrum. Experiments have been done on the response of dust in needle roller bearing grease to noise, and it has been proved that the more dust there is, the greater the noise will be.
2. For the reflection of lubricating performance, the decline of bearing cleanliness not only reflects the formation of lubricating oil film, but also causes the deterioration of lubricating grease and accelerates its aging, thus reflecting the decline of lubricating grease's lubricating performance.
3. Response to vibration and noise
The cleanliness of the bearing has a great impact on the life of the needle roller bearing. The bearing has been specially tested for this, and the result is that the difference is several times or even dozens of times. The higher the cleanliness of the bearing, the longer the life of the ball bearing. Experiments by others have shown that lubricating oil with different cleanliness has a great impact on the life of the ball bearing. When the amount of wear is large, it is the bearing, noise, and vibration that increase, which increases the running precision of the bearing, so it indirectly affects the precision of some long-term machines. Therefore, for some bearings used in safety machinery, daily maintenance is mainly to prevent the intrusion of pollutants and dust. Because the cleaning of the improved lubricating oil can prolong the life of the bearing, so if the dirt particles in the lubricating oil are controlled below 10um, the life of the bearing will double as an integer. The experimental results of the bearing test center show that the degree of cleanliness seriously reflects the vibration degree of the bearing, especially the high-frequency vibration is more obvious. Response to service life: Due to the relative movement of the bone body and the raceway and the intrusion of pollutants and dust, the surface of the bone body and the raceway is worn out.
What are the causes of bearing damage?
In order to check whether the bearing is installed correctly, we can try to run the inspection after installation. If it is a small bearing, it can also be rotated by hand to try it out, while a large mechanical equipment bearing needs to be tested by operation. The inspection content mainly includes whether the bearing is running smoothly. If it is installed improperly, or there are foreign objects in the rolling body, it will cause bearing scars, poor operation, and cause bearing damage.
The main causes of bearing damage are as follows:
1. Improper installation and operation. Improper force during installation or disassembly causes deformation or damage to the bearing cage, so it is necessary to master the strength and use appropriate installation and disassembly tools during installation.
2. Insufficient preparation and no lubrication measures. Insufficient lubrication causes running damage to components. You can choose high-quality lubricating oil or grease, and add it appropriately.
3. The bearing rolling elements are rusted or corroded. The bearings are not placed in a dry place, long-term exposure to water causes the bearing elements to rust and flake off once they are in operation. Therefore, check the sealing condition of the bearing regularly to ensure the sealing effect.
4. Slightly burn components when contacting electric current. Improper electrical operation during energized operation. Bearing grounding should be reduced or current should not pass through the bearing.
5. The surrounding environment is not clean. The debris and dust falling critically from the outside increase the wear and abrasion of the bearing. Remove particulate matter from raceways in a timely manner.
Ways to fix the inner ring of the bearing
The inner ring of the bearing needs to be fixed when it is used, but friends who use our bearings are not very clear about the fixing method. Today, for the better use of everyone, Mobei.com will talk to you about the method of fixing the inner ring of the bearing.
